Susanoo

Shinto god of storms
Susanoo was always different from his twins Amaterasu and Tsukuyomi. While they were born from their father Izanagi's eyes Susanoo was born from a raging headache that Izanagi had shortly after making the god of the moon and sun. As he grew up he never stopped being a headache to his father as his rowdy behavior got so out of control that he was banished from heaven. This resulted in Susanoo being forced to walk among humans to earn his seat in heaven back. After years went by Susanoo earned said seat back by slaying the great king of yokai Yamato-no-Orochi. From his scales, he made the grass cutter blade. However; one day he started to feel Orochi's corruption so to save himself he used all of his strength to strike himself down but this resulted in an explosion that destroyed one of the twin mountains of the rising sun.
Although he didn't die from the blast he did become human. Seeking to find peace with himself for what he did and to find a purpose in life. With a new name Ryuma he went out to discover himself.
It is hard to escape one's past though because with the rising threat of Hazama the avatar of Orochi, Ryuma was soon outed as the storm god Susanoo. He tried to fight against his old nemesis but the residual corruption he tried to get rid of years ago came back turning Susanoo into a mindless puppet. Luckily the party was able to defeat allowing the storm god to finally rest in piece